Home / 18,865.16-28,288.02-8,468

Finding the Fourth Proportional to 18,865.16, 28,288.02 and 8,468

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Solution

The fourth proportional to 18,865.16, 28,288.02 and 8,468 is: 12,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.16 : 28,288.02 = 8,468 : x
  2. Step 2: Convert to fraction form
    18,865.16/28,288.02 = 8,468/x
  3. Step 3: Cross multiply
    18,865.16x = 28,288.02 × 8,468
  4. Step 4: Simplify right side
    18,865.16x = 239,542,953.36
  5. Step 5: Solve for x
    x = 239,542,953.36/18,865.16
  6. Step 6: Final answer
    x = 12,697.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.